Error Code: U051 and U052 - PIXMA MG6220, MG8220...
Article ID: ART138026 | Date published: 05/13/2015 | Date last updated: 04/20/2023


The error U051 / U052 indicates that a communication issue with the print head has occurred.  This can be caused either by the print head not being installed properly or a hardware failure.


The codes indicate the one of the following errors:
  • U051 Print head is not installed. Install the print head.
  • U052 The type of print head is incorrect. Install the correct print head.

Follow these steps to be sure that the print head is properly seated:

  1. Make sure that the printer is turned on, and gently open the paper output tray.

  2. Lift the scanning unit cover and hold it open with the support (A). The print head will move to the replacement position.

    Cover being lifted with support in place
  3. Push the tab (B) and lift the ink tank to remove it. Be careful not to touch the print head lock lever (C).

    Tab B pushed to remove ink tank
  4. After you remove the ink tanks, raise the print head lock lever.

  5. Tilt the print head slightly towards the front of the machine and lift it out gently.

    Print head titled towards front of machine
  6. Tilt the print head and set it in place. Lower the print head lock lever (E) completely.​

    Print head being set and locked in place
  7. Insert the front end of the ink tank into the print head at a slant. Make sure that the position of the ink tank matches the label.

  8. Press Push on the ink tank until the ink tank snaps firmly into place. Make sure that the ink lamp lights up red.​​

    Push being pressed on ink tank

    Caution Avoid touching the print head nozzles <1>, electrical contacts <2>, or ink supply ports <3>. Doing so may cause printing problems.

    Don't touch areas highlighted

    Note Before going to the next step, check the carriage area and remove any packing material, torn paper or other foreign objects.

  9. Lift the cover slightly to set scanning unit support back to its original position, and gently close the cover.

When you start the next print job, the machine will automatically start cleaning the print head. Wait for the process to complete before starting a new task.

If the steps above do not resolve the issue, your printer will require service.

There are two options currently available to you.

  1. Warranty Service – If you are within the 1-year manufacturer’s warranty and have your proof of purchase you are entitled to service or replacement. If you have purchased a CarePak Canon extended warranty, you may be entitled to additional options.  Please create or log into your Canon Account to obtain service.
  2. Out of Warranty – If you are outside of your warranty period, you may qualify for purchasing a replacement through the Canon Upgrade Program. Please contact our Sales group to inquire about your upgrade options at 866-443-8002.
To verify your support options please create or log into your Canon Account.